REFILE - ADDING DISCLAIMER
An oil rig used in drilling at the Ngamia-1 well on Block 10BB, in the Lokichar basin, which is part of the East African Rift System, is seen in Turkana County, in this undated handout photograph. Kenya announced on March 26, 2012, its first oil discovery, saying it was found in the northern part of the country where Africa-focused British firm Tullow Oil Plc has been exploring for oil, and was now checking on the commercial viability of the find. REUTERS/Tullow Oil plc/Handout (KENYA - Tags: ENERGY BUSINESS) FOR EDITORIAL USE ONLY. NOT FOR SALE FOR MARKETING OR ADVERTISING CAMPAIGNS. THIS IMAGE HAS BEEN SUPPLIED BY A THIRD PARTY. IT IS DISTRIBUTED, EXACTLY AS RECEIVED BY REUTERS, AS A SERVICE TO CLIENTS